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I am free yet priceless, you...

I am free yet priceless, you can't own me but you can use me, you can't keep me but you can spend me. Once you lost me you can never have me back. What am I?

Correct answers: 105

The first user who solved this task is Djordje Timotijevic.

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A Birthday Wish

Little Sonia was shouting her prayers. "Please God send me a new doll for my birthday."
Her mother, overhearing this, said, "Don't shout dear, God isn't deaf."
"No, but Grandad is, and he's in the next room," Sonia replied.

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Clarence E. McClung

Died 17 Jan 1946 at age 75 (born 5 Apr 1870).Clarence Erwin McClung was an American geneticist and paleontologist who discovered the role of chromosomes in sex determination in a species of grasshopper. In a key paper, he reported that sperm exist in two forms, each with a different chromosome configuration. Thus, he was one of the first (1901) to deduce that chromosomes determine the sex of offspring. McClung also studied how the behaviour of chromosomes in the sex cells of different organisms affects their heredity. His theory was one of many that inspired scientists to pursue investigations such as the Human Genome Project, an attempt to map the structure and location of all human genes. He also published on Cretaceous fishes.[This birth date given in ADB. However, EB states 6 April 1870.]

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